Analysis of interatomic Contacts of Structural Units in PDB entry:
3COS

Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
This page provides analyses of contacts formed by:

chains
helices
sheets
residues

For analysis of ligand-protein contacts, use:

LPC software

3D structure can be seen in additional window with STING software for 3COS entry

There are 4 chains in PDB entry 3COS (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLY 2	PHE 380
B	GLY 2	PHE 380
C	GLY 2	PHE 380
D	SER 0	PHE 380

There are 64 helices in PDB entry 3COS. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	47	53	Right-handed alpha
Helix 2	2	A	121	125	Right-handed 310
Helix 3	3	A	171	176	Right-handed alpha
Helix 4	4	A	177	179	Right-handed 310
Helix 5	5	A	180	191	Right-handed alpha
Helix 6	6	A	207	220	Right-handed alpha
Helix 7	7	A	231	233	Right-handed 310
Helix 8	8	A	234	241	Right-handed alpha
Helix 9	9	A	248	252	Right-handed 310
Helix 10	10	A	255	264	Right-handed alpha
Helix 11	11	A	277	287	Right-handed alpha
Helix 12	12	A	310	316	Right-handed alpha
Helix 13	13	A	324	328	Right-handed 310
Helix 14	14	A	329	343	Right-handed alpha
Helix 15	15	A	348	350	Right-handed 310
Helix 16	16	A	360	370	Right-handed alpha
Helix 17	17	B	47	54	Right-handed alpha
Helix 18	18	B	121	125	Right-handed 310
Helix 19	19	B	171	176	Right-handed alpha
Helix 20	20	B	177	179	Right-handed 310
Helix 21	21	B	180	191	Right-handed alpha
Helix 22	22	B	207	220	Right-handed alpha
Helix 23	23	B	231	233	Right-handed 310
Helix 24	24	B	234	241	Right-handed alpha
Helix 25	25	B	248	252	Right-handed 310
Helix 26	26	B	255	265	Right-handed alpha
Helix 27	27	B	277	287	Right-handed alpha
Helix 28	28	B	310	316	Right-handed alpha
Helix 29	29	B	324	328	Right-handed 310
Helix 30	30	B	329	343	Right-handed alpha
Helix 31	31	B	348	350	Right-handed 310
Helix 32	32	B	360	370	Right-handed alpha
Helix 33	33	C	47	53	Right-handed alpha
Helix 34	34	C	121	125	Right-handed 310
Helix 35	35	C	171	176	Right-handed alpha
Helix 36	36	C	177	179	Right-handed 310
Helix 37	37	C	180	191	Right-handed alpha
Helix 38	38	C	207	220	Right-handed alpha
Helix 39	39	C	231	233	Right-handed 310
Helix 40	40	C	234	241	Right-handed alpha
Helix 41	41	C	248	252	Right-handed 310
Helix 42	42	C	255	264	Right-handed alpha
Helix 43	43	C	277	287	Right-handed alpha
Helix 44	44	C	310	316	Right-handed alpha
Helix 45	45	C	324	328	Right-handed 310
Helix 46	46	C	329	343	Right-handed alpha
Helix 47	47	C	348	350	Right-handed 310
Helix 48	48	C	360	370	Right-handed alpha
Helix 49	49	D	47	54	Right-handed alpha
Helix 50	50	D	121	125	Right-handed 310
Helix 51	51	D	171	176	Right-handed alpha
Helix 52	52	D	177	179	Right-handed 310
Helix 53	53	D	180	191	Right-handed alpha
Helix 54	54	D	207	220	Right-handed alpha
Helix 55	55	D	231	233	Right-handed 310
Helix 56	56	D	234	241	Right-handed alpha
Helix 57	57	D	248	252	Right-handed 310
Helix 58	58	D	255	264	Right-handed alpha
Helix 59	59	D	277	287	Right-handed alpha
Helix 60	60	D	311	316	Right-handed alpha
Helix 61	61	D	324	328	Right-handed 310
Helix 62	62	D	329	343	Right-handed alpha
Helix 63	63	D	348	350	Right-handed 310
Helix 64	64	D	360	370	Right-handed alpha

There are 18 sheets in PDB entry 3COS. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	8	14	first strand
Strand 2	A	23	29	anti-parallel
Strand 3	A	136	138	anti-parallel
Strand 4	A	141	143	anti-parallel

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There are 5 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	155	159	first strand
Strand 2	A	36	45	anti-parallel
Strand 3	A	70	78	anti-parallel
Strand 4	A	90	93	anti-parallel
Strand 5	A	163	165	anti-parallel

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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	155	159	first strand
Strand 2	A	36	45	anti-parallel
Strand 3	A	375	379	anti-parallel
Strand 4	A	352	357	parallel

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There are 6 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	245	247	first strand
Strand 2	A	224	228	parallel
Strand 3	A	200	204	parallel
Strand 4	A	270	273	parallel
Strand 5	A	293	297	parallel
Strand 6	A	318	322	parallel

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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	307	309	first strand
Strand 2	B	307	309	anti-parallel

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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	8	14	first strand
Strand 2	B	23	29	anti-parallel
Strand 3	B	136	138	anti-parallel
Strand 4	B	141	143	anti-parallel

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There are 5 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	155	159	first strand
Strand 2	B	36	45	anti-parallel
Strand 3	B	70	78	anti-parallel
Strand 4	B	90	93	anti-parallel
Strand 5	B	163	165	anti-parallel

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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	155	159	first strand
Strand 2	B	36	45	anti-parallel
Strand 3	B	375	379	anti-parallel
Strand 4	B	352	357	parallel

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There are 6 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	245	247	first strand
Strand 2	B	224	228	parallel
Strand 3	B	200	204	parallel
Strand 4	B	270	273	parallel
Strand 5	B	293	297	parallel
Strand 6	B	318	322	parallel

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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	8	14	first strand
Strand 2	C	23	29	anti-parallel
Strand 3	C	136	138	anti-parallel
Strand 4	C	141	143	anti-parallel

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There are 5 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	155	159	first strand
Strand 2	C	36	45	anti-parallel
Strand 3	C	70	78	anti-parallel
Strand 4	C	90	93	anti-parallel
Strand 5	C	163	165	anti-parallel

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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	155	159	first strand
Strand 2	C	36	45	anti-parallel
Strand 3	C	375	379	anti-parallel
Strand 4	C	352	357	parallel

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There are 6 strands in M sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	245	247	first strand
Strand 2	C	224	228	parallel
Strand 3	C	200	204	parallel
Strand 4	C	270	273	parallel
Strand 5	C	293	297	parallel
Strand 6	C	318	322	parallel

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There are 2 strands in N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	307	309	first strand
Strand 2	D	307	309	anti-parallel

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There are 4 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	8	14	first strand
Strand 2	D	23	29	anti-parallel
Strand 3	D	136	138	anti-parallel
Strand 4	D	141	143	anti-parallel

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There are 5 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	155	159	first strand
Strand 2	D	36	45	anti-parallel
Strand 3	D	70	78	anti-parallel
Strand 4	D	90	93	anti-parallel
Strand 5	D	163	165	anti-parallel

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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	155	159	first strand
Strand 2	D	36	45	anti-parallel
Strand 3	D	375	379	anti-parallel
Strand 4	D	352	357	parallel

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There are 6 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	245	247	first strand
Strand 2	D	224	228	parallel
Strand 3	D	200	204	parallel
Strand 4	D	270	273	parallel
Strand 5	D	293	297	parallel
Strand 6	D	318	322	parallel

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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 3COS

Analysis of interatomic Contacts of Structural Units in PDB entry:
3COS